I understand Mahle is made by Victor Reinz and Victor Reinz is considered to be far more superior gaskets than any other gaskets on the market today. I have installed most the gasket and so far so good. I pulled the 5.7 Hemi engine from my R/T Charger and worked on it on an engine stand. The car has 90,000 miles on it an ethanol gasoline ruined the valve train, resulting in a complete valve job. I'm looking forward to hear the Bow Tie engine start and run. Thanks.